Rumer Willis celebrated her 24th birthday with her sisters Tallulah and Scout and daddy Bruce Willis at Abe & Arthur’s in the Meatpacking District. Sources said the girls enjoyed a relaxed dinner on Thursday, and their movie-star dad joined them midway through the meal. “He helped them sing ‘Happy Birthday’ to Rumer and blow out the candles” a witness said. Bruce then left the women to party on their own as Rumer and the group went downstairs to SL lounge.